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GitHub issues 78 79 81 num aff flags off by one (#82)

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* Make sure all followers are free'd before freeing the character list

Otherwise, the followers structs will point to free'd memory and
the stop_follower call will attempt to dereference a free'd
characters' followers list.

* https://github.com/tbamud/tbamud/issues/79 typo

* https://github.com/tbamud/tbamud/issues/81 nullpointer crash on syntax check run

* NUM_AFF_FLAGS fix.

Now, consistently, the NUM_AFF_FLAGS is used in the same way as other
NUM_* variables. Specifically, the the number is consistent with
how others are defined - 1 above the highest in the list.

I would like to have removed the need to start from 1 instead of 0
as well, but the loading mechanism, and thus potentially a lot of
existing object files, use 0 as a marker for "no flags set", and
we can't easily fix that. So, the places we loop through the list,
we still need to make sure we're stying within the [1;NUM_AFF_FLAGS) interval.

Simultaneously, I've checked over the other flags, and it seems like
the usage is pretty consistent there.

Fixes https://github.com/tbamud/tbamud/issues/78
This commit is contained in:
Thomas Arp 2020-02-26 00:39:29 +01:00 • committed by GitHub
parent 7f0acefcb4
commit eb650c2811
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9 changed files with 17 additions and 21 deletions
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2
src/act.wizard.c
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@ -922,7 +922,7 @@ static void do_stat_character(struct char_data *ch, struct char_data *k)
if (aff->bitvector[0] || aff->bitvector[1] || aff->bitvector[2] || aff->bitvector[3]) {
if (aff->modifier)
send_to_char(ch, ", ");
for (i=0; i<NUM_AFF_FLAGS; i++) {
for (i=1; i<NUM_AFF_FLAGS; i++) {
if (IS_SET_AR(aff->bitvector, i)) {
send_to_char(ch, "sets %s, ", affected_bits[i]);
}